Vitamin D3 3000 IU & Vitamin K2 100µg MK-7 — 90 Vegetarian Capsules, three-month supply.
- Vitamin D contributes to the maintenance of normal bones and the maintenance of normal muscle function
- Vitamin D contributes to the normal function of the immune system
- Vitamin K contributes to the maintenance of normal bones and to normal blood clotting
The D3 and K2 Pairing for Bones, Muscles and Immunity
Vitamin D and vitamin K are both fat-soluble nutrients with well-established roles on the GB nutrition register. This capsule pairs 3000 IU (75µg) of vitamin D3 — cholecalciferol, the form naturally produced by the skin in response to sunlight — with 100µg of vitamin K2 in the MK-7 form. MK-7 (menaquinone-7) is the long-chain form of vitamin K2, with one of the longest half-lives among the K2 variants and the form most extensively studied in published nutritional research. Ninety capsules per bottle — a full three-month supply at one per day. Suitable for vegetarians.
Why People Choose Vitamin D3 & K2
- ✓ Vitamin D contributes to normal absorption/utilisation of calcium and phosphorus
- ✓ Vitamin D contributes to the maintenance of normal teeth and to normal blood calcium levels
- ✓ Vitamin K contributes to the maintenance of normal bones — alongside vitamin D, which has the same GB-register role
- ✓ D3 and K2 together in a single daily capsule — the combination sought by those who research this area
- ✓ 90 capsules — a three-month supply at one per day
- ✓ Vegetarian HPMC capsule, gluten free, UK manufactured
More Than a Standard Vitamin D Supplement
A basic vitamin D capsule delivers D3 alone. This formula adds 100µg of vitamin K2 in the MK-7 form — the version that has been most studied in published nutritional research and that circulates in the body for longer than shorter-chain forms. Both nutrients have well-established health effects on the GB nutrition register relating to the maintenance of normal bones. For people who research this pairing, this is the combination most consistently used. Suitable for vegetarians; not suitable for vegans as cholecalciferol is derived from lanolin.
Making It Part of Your Routine
One capsule daily — taken with food and water as part of a morning routine. At one capsule per day, the 90-capsule bottle covers a full three months. Through autumn and winter in the UK, when sunlight-driven vitamin D production falls sharply, a consistent daily supplement is the standard approach. Both vitamin D and vitamin K are fat-soluble, so taking the capsule alongside a meal that contains some fat supports their normal absorption. Available on a one-off basis or on subscription.
Vitamin D3 and K2 in Context
Vitamin D3 (cholecalciferol) is the form of vitamin D produced naturally in the skin in response to UVB sunlight. In the UK, significant skin production of vitamin D is only possible during the summer months; through autumn and winter the sun angle is too low for this to occur at most UK latitudes. Public Health England and the NHS recommend supplementation for most adults during autumn and winter, and year-round for certain groups. Vitamin K2 (menaquinone) is a fat-soluble nutrient found in fermented foods; the MK-7 variant (menaquinone-7) has been studied more extensively than shorter-chain K2 forms in published nutritional research. Both vitamin D and vitamin K have multiple well-established health effects on the GB nutrition register.
Inside the Formula
Vitamin D3 (Cholecalciferol) 75µg (3000 IU) — 1140% NRV — vitamin D contributes to the maintenance of normal bones, teeth and muscle function; to the normal function of the immune system; to normal absorption/utilisation of calcium and phosphorus; to normal blood calcium levels; and to cell division.
Vitamin K2 (as MK-7, Menaquinone-7) 100µg — 133% NRV — vitamin K contributes to the maintenance of normal bones and to normal blood clotting. At 133% of the nutrient reference value, those taking anticoagulant medication (including warfarin) should not take this product without first consulting their GP or pharmacist, as vitamin K affects how these medications work.
Other Ingredients — Bulking Agent: Microcrystalline Cellulose; Capsule Shell: Hydroxypropyl Methylcellulose (vegetarian); Vitamin D3 Prep: Acacia Gum, Sugar Cane, Sunflower Oil, Corn Starch, Cholecalciferol; Vitamin K2 Prep: Dicalcium Phosphate. Anti-Caking Agents: Magnesium Stearate, Silicon Dioxide. Gluten free. Not suitable for vegans.
Swiss BioEnergetics
Trusted UK Manufacturing — made at a GMP Code of Practice facility and certified to ISO 9001, with quality that's independently audited throughout production.
Clean, Potent Ingredients — We use established ingredient forms at the doses specified in each formulation, with no unnecessary fillers where they can be avoided.
Evidence-Inspired Formulas — each product is developed against the published nutritional science and well-established GB-register health effects for the nutrients it contains.
30-Day Guarantee
If you're not satisfied with your purchase for any reason, contact us within 30 days and we'll make it right. Swiss BioEnergetics products are made to a standard we stand behind.
Frequently Asked Questions
Is this product suitable for vegans?
No. The vitamin D3 (cholecalciferol) is derived from lanolin, which comes from sheep's wool. The capsule shell is HPMC (vegetarian), but this product is not suitable for vegans. A vegan alternative is the Swiss BioEnergetics Vegan Vitamin D3 1000 IU.
Can I take this if I am on anticoagulant medication?
Not without consulting your GP or pharmacist first. Vitamin K2 at 133% of the nutrient reference value affects blood clotting and can interfere with anticoagulant medications including warfarin. Do not take this product if you are on anticoagulant therapy without professional guidance.
Why is MK-7 used rather than MK-4?
MK-7 (menaquinone-7) is a long-chain form of vitamin K2 with a longer half-life in the body than shorter-chain forms such as MK-4. It is the form most extensively studied in published nutritional research on vitamin K2.
How long does one bottle last?
At one capsule per day, the 90-capsule bottle is a three-month supply.
When should I take it?
Take one capsule daily with food and water. Both vitamin D and vitamin K are fat-soluble, so taking the capsule with a meal that includes some fat supports their normal absorption.
